ZIP code 92040

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 27,124 acres · 23,695 state, 3,429 local 62%
  2. High 1,387 acres · 714 state, 673 local 3%
  3. Moderate 545 acres · Local Responsibility Area 1%
  4. Non-wildland 1,666 acres · Local Responsibility Area 4%
  5. Not mapped by CAL FIRE 13,250 acres · Mostly federal land 30%

  43,971 acres of land in all, 24,409 in the State Responsibility Area and 6,313 in the Local. State zones are the ones the State Fire Marshal designated, in effect since April 1, 2024. Local zones are CAL FIRE's 2025 recommendation, which each city or county adopts by ordinance and can make stricter. How to read fire zones

• Fire history

  The 10 largest of 90 fires that burned here

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  1. 2003 Cedar Fire 270,686 acres in total · Cause: Equipment use 32,902 acres here
  2. 1956 Outside Origin #42 Fire 46,602 acres in total · Cause: Miscellaneous 11,000 acres here
  3. 1928 Unnamed fire 48,613 acres in total · Cause: Miscellaneous 6,896 acres here
  4. 1929 Unnamed fire 22,336 acres in total · Cause: Miscellaneous 4,903 acres here
  5. 2007 Witch Fire 162,070 acres in total · Cause: Miscellaneous 4,439 acres here
  6. 1995 El Monte Fire 8,564 acres in total · Cause: Smoking 3,759 acres here
  7. 1913 Unnamed fire 62,426 acres in total 3,371 acres here
  8. 1981 Morena Avenue Fire Cause: Miscellaneous 2,648 acres here
  9. 1938 Unnamed fire 3,468 acres in total 2,561 acres here
  10. 1942 Unnamed fire Cause: Miscellaneous 2,530 acres here

  And 80 smaller fires. The most recent was the 2025 Monte Fire, which burned 1,050 acres here. In all, 34,678 acres of ZIP code 92040 have burned. Acres are the land each fire burned here, and fires that crossed less than an acre are not counted. Some older or smaller fires may be missing, and a fire perimeter can include unburned patches. How to read fire history